.pcd-top{
    background-image: url("./产品介绍.png");
    background-size: cover;
    background-repeat: no-repeat;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pcd-menu-i{
   width: 100%;
   text-align: center;
   font-size: 20px;
}
.pcd-mod-layout{
   width: 100%;
   height: 600px;
   background-color: #fff;
   display: flex;
   align-items: center;
   justify-content: center;
   border-bottom: 2px solid #e8e8e8;
   
}